Film container for roll



Jan. 24, LE|TZ E AL FILM CONTAINER FOR ROLL FILM CAMERA Filed July 251951 2 SheetsSheei l 31 INVENTORS [flow/6' u n- Jan. 24, L E|TZ ET ALFILM CONTAINER FOR ROLL FILM CAMERA Filed July 25, 1951 2 Sheets$heet 2V J/HI f 6 A ylfli ,A 2

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(vow g 15 7 INVENTORS "6' WEHRENFEWNI$ ttfi 1 FILM CONTAINER F632 R011.FILM CAMERA Ludwig Leitz and Hugo Wehrenfennig, Wetzlar (Lahn), ermany,assignors to Ernst Leitz, G. in. b. H., a corporation of GermanyApplication July 25, 1951, Serial No. 271,334 Claims priority,application Germany July 31, 195%) 3 Claims. (Cl. 95-31) This inventionrelates tainers for age by the entrance of light. Other objects are toprovide novel the container after it has been placed within the cameraand other means within container.

transverse sectional vlew showing the container placed within a cameraand with the film exit opening opened. Parts are in section and partsbroken away.

Figs. 3 and 4- are sectional detail views, with parts broken away, andillustrate the means for opening the container exit to withdraw film.

Fig. 5 shows a modification.

Referring first to Fig. 3, the film l is wound upon a spool 2 havinghubs 3 which rest rotatably in the end walls of the film container whichconsists of two semicircular shells 5 and 6 hinged together lengthwiseby a hinge '7, Fig. 2. Each shell is formed with a film jaw 3, 9,respectively, and each jaw has an inner film gripping waveformed orcurved surface 16, 11, respectively.

same time covers the hinge 7 lighttight. The shells 5 and 5 are heldtogether by a tendon-like elastic band or spring 13 supported insuitable grooves in the strip 112. The end walls 14, 14- of the twoshells overlap as shown at 15. Each of the end walls at one end of thecontainer carries a guide 16. The two guides form a narrowing channel 25when the container is closed.

The empty container is shown in Fig. 1. be used, the container is StatesPatent 0 is held closed by the hand against the entrance of light. tionthat when the container is 13, the film being protected It is a featureof the invenclosed, the free end of the panding tendency of the film,the springs do not prevent the closing of the container by the band 13which snaps and holds the two shells together. The diameter of the Fig.5 shows a modification in which a Z-formed spring 39 with arms 31, 31embraces the shells to close the container. Each of the spring arms 31engages one of the shells as shown.

As shown in Fig. 3, the camera 29 has a cover 21 which in known manneris locked to the camera by a lock lever 22 having a locking disk 23inside the camera. The disk carries a pin 24. After the film containerhas lock lever is turned the pin 24 forces the guides apart and therebyopen the container. The pin 24 causes the jaws 9 to be moved against astop 26 in the camera, Fig. 2, and at the same time lifts the other jaw3. By these opening between the jaws is opened and positioned within thecamera so that film may pass out from the container.

The container may be made of metal, plastic or other material. The fiL nspool is laid sideways into the container which is more convenient thanaxial insertion especially in a darkroom. It is to be noted that thewaved surfaces of the jaws are clean and free of any surface lining suchas has heretofore been proposed. It the jaws were lined with textilematerial, for example, such material would catch dirt and dust andinjure the film as it passed between the jaws. Axial insertion of a filmspool into a container necessitates a more complicated device, and atleast one of the end walls of such container must be made removable. Themanipulation of the film to thread it or connect it with the film movingcamera is not described or illustrated, it being well known camerapractice.

The invention is not limited to the exact disclosure but changes andmodifications may be made. We claim ail such changes and modificationsas come within the principle of the invention and the scope of theappended claims.

We claim:

1. In combination, a camera, a removable cover therefor and means on thecover to lock the same to the camera, a film container for said cameracomprising two halves container portions hinged together lengthwise tosaid two halves container porform a container with the tions movableabout said hinge towards and away from open the container when saidlocking means are actuated to lock the cover on the camera, said filmcontainer being a separate film containing unit manually insertable anddetachable from said camera, means engaging said container halves tokeep the container lighttightly closed after removal from the camera, afilm gripping jaw formed on each of said container halves, said jawsopposing each other in film gripping relation when said container halvesare closed to form a container, said jaws having opposed inner wavedsurfaces intermeshing in film gripping relation.

2. The combination according to claim 1 character-.

ized by spring members secured to the inner walls of said containerportions and adapted to engage the outer winding of a spool of filmplaced in the container to control the film during unwinding thereof.

3. The combination according to claim 1 characterized by a jaw formedintegral with each of said container portions, said jaws forming a filmexit opening from the container, the inner opposed surfaces of said jawsbeing unlined and waved to grip a film between them and a spring memberembracing said container portions to keep the container closed with thesaid jaws gripping the film between them.

References Cited in the file of this patent UNITED STATES PATENTSGianetto Feb. 24, Thornton Sept. 18, Collings July 18, Walter Sept. 3,Lindenberg Oct. 15, Mihalyi Dec. 7, Simmon et al. May 3, Roehrl Nov. 8,Goodhand Aug. 22, Ernisse Jan. 9, Mihalyi Nov. 13,

FOREIGN PATENTS France Jan. 12, Germany Sept. 9,

